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Full text of "The manufacture and properties of iron and steel"

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The movement of ore during the last few years may be seen in Table XXII-M, while Fig. XXII-C shows the route followed to Chicago and the Lake Erie ports. The map in Fig. XXII-B gives more detail concerning the Eastern points to which the ore is carried, while Figs. XXII-D and XXII-E give views of the mining districts.
SEC. XXIId.—Pittsburgh:
The great center of the iron industry of the United States is around .Pittsburgh in Allegheny County, Pennsylvania,, a map of which is shown in Fig. XXII-F. This county produces one-quarter of all the iron made in the country and hence might be discussed separately. But from an economical standpoint we must embrace parts of three States:
Pennsylvania: Allegheny, Westmoreland and Fayette counties and the Shenango and Beaver valleys.
Ohio: The Mahoning Yalley and Ohio River counties.
West Virginia: The northern point between Pennsylvania and Ohio, comprising Marshall and Ohio and Preston counties.
This gives a rectangle 70 miles north and south and 80 miles east and west. The statistics for each county of Pennsylvania are of record, but neither Ohio nor West Virginia collects such information ; we do have the total production of pig-iron and steel in Ohio and the output of pig-iron in West Virginia, and the location and number of converters and open-hearth furnaces and their productive capacity for each works, while I am in possession of considerable private information as to the output of certain centers.
Output of Pig-iron and Steel in the Pittsburgh District in 1901.
	Pig Iron.	.Steel.
	3685,665	5 138,839
Shetiango Vftllev ..............	979,415	484,692
Weftmoreland, Fayette, etc.. . ,	115.261 1 404 857	153,525 "4      •» /
	527958	1     Est.
West Virginia .................	166,597	("(1,540,000)
	6,879,753	7.317,056
The Shenango Valley, in Northwestern Pennsylvania, made over one million tons of pig-iron in 1903, but two-thirds was shipped to Pittsburgh for conversion. The Mahoning Valley makes half